/* 定义全局变量 */
:root{ 
    --greenColor3:#41b883;
    --greenColor1:#9fcbaa;
    --greenColor2:#b3d9bd;
    --yellowColor:#fcc005;
    --blueColor2: #23aaf2;
    --blueColor3:#62b5d9;
    --blueColor4:#8ec1e6;
    --blueColor5:#cadde9;
    --blueColor6:#ecf5ff;
    --balckColor:#35495e;
  }
  
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Verdana, Georgia;
}
li{
    list-style: none;
}
th,td{
    border: 1px solid #ccc;
}
table{
    border: 1px solid #ccc;
    border-collapse: collapse;
}
a{
    text-decoration: none;
}
